I'm currently fighting with my EAF that won't react on 'reverse motion'. The issue is (likely) the firmware, my unit is still at 3.1.3.
However, FW update is only supported in Windows. While I have some 30+ computers around here, we don't have any windows machines (nor licenses, FWIW).
Normal serial/USB units like mounts, hand controllers are usually updatable by running the software in wine, but this fails for HID devices like the EAF. There really should be an option for FW updates for users that don't have Windows.
My appreciation for the EAF (which is a very nice unit) has substantially dropped due to this :(